package com.ruoyi.framework.web.service;

import java.util.HashSet;
import java.util.Set;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import com.ruoyi.common.core.domain.entity.H5User;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.enums.UserStatus;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.system.domain.User;
import com.ruoyi.system.service.ISysUserService;
import com.ruoyi.system.service.IUserService;

/**
 * 用户验证处理
 *
 * @author ruoyi
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    private static final Logger log = LoggerFactory.getLogger(UserDetailsServiceImpl.class);

    @Autowired
    private ISysUserService userService;

    @Autowired
    private SysPasswordService passwordService;

    @Autowired
    private SysPermissionService permissionService;

    @Autowired
    private IUserService iUserService;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        // 判断是否是 H5 端登录
        String clientType = SecurityUtils.getClientType();
        if ("h5".equals(clientType)) {
            return loadH5UserByUsername(username);
        }
        SysUser user = userService.selectUserByUserName(username);
        if (StringUtils.isNull(user)) {
            log.info("登录用户：{} 不存在.", username);
            throw new ServiceException(MessageUtils.message("user.not.exists"));
        } else if (UserStatus.DELETED.getCode().equals(user.getDelFlag())) {
            log.info("登录用户：{} 已被删除.", username);
            throw new ServiceException(MessageUtils.message("user.password.delete"));
        } else if (UserStatus.DISABLE.getCode().equals(user.getStatus())) {
            log.info("登录用户：{} 已被停用.", username);
            throw new ServiceException(MessageUtils.message("user.blocked"));
        }

        passwordService.validate(user);

        return createLoginUser(user);
    }

    public UserDetails createLoginUser(SysUser user) {
        return new LoginUser(user.getUserId(), user.getDeptId(), user, permissionService.getMenuPermission(user));
    }
        /**
     * 加载 H5 端用户信息
     */
    private UserDetails loadH5UserByUsername(String username) {
        User user = iUserService.selectUserByUserName(username);
        if (StringUtils.isNull(user)) {
            log.info("H5登录用户：{} 不存在.", username);
            throw new ServiceException(MessageUtils.message("user.not.exists"));
        }
        else if ("1".equals(user.getIsDel())) {
            log.info("H5登录用户：{} 已被删除.", username);
            throw new ServiceException(MessageUtils.message("user.password.delete"));
        }

        H5User sysUser=convertToSysUser(user);

        LoginUser loginUser = new LoginUser(user.getId(), sysUser);
        return loginUser;
    }
    /**
     * 将 User 转换为 SysUser
     */
    private H5User convertToSysUser(User user) {
        H5User sysUser = new H5User();
        sysUser.setId(user.getId());
        sysUser.setNickname(user.getNickname());
        sysUser.setUsername(user.getUsername());
        sysUser.setAvatar(user.getAvatar());
        sysUser.setIsDel(user.getIsDel());
        sysUser.setTop(user.getTop());
        sysUser.setBusinessLicense(user.getBusinessLicense());
        // sysUser.setDelFlag(user.getIsDel());
        // sysUser.setStatus(user.getStatus());
        // 重要：设置密码，这样后续的密码验证才能正常进行
        sysUser.setPassword(user.getPassword());
        return sysUser;
    }
}
